31241222321 has 8 divisors (see below), whose sum is σ = 32903092320. Its totient is φ = 29581111872.

The previous prime is 31241222297. The next prime is 31241222339. The reversal of 31241222321 is 12322214213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31241222321 - 2²⁶ = 31174113457 is a prime.

It is a super-2 number, since 2×31241222321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31241222381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403355 + ... + 474528.

It is an arithmetic number, because the mean of its divisors is an integer number (4112886540).

Almost surely, 2^31241222321 is an apocalyptic number.

It is an amenable number.

31241222321 is a deficient number, since it is larger than the sum of its proper divisors (1661869999).

31241222321 is a wasteful number, since it uses less digits than its factorization.

31241222321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879775.

The product of its digits is 1152, while the sum is 23.

Adding to 31241222321 its reverse (12322214213), we get a palindrome (43563436534).

The spelling of 31241222321 in words is "thirty-one billion, two hundred forty-one million, two hundred twenty-two thousand, three hundred twenty-one".